and i'm just curious, do they currently -- do they do anything with the obamas? >> do the carters do anything with the obamas? >> i think sure, they had some interaction. we had pictures of them earlier together at the white house. but president carter sort of marches to his own drum beat and, you know, he has views that are very strong about the middle east and other things. and the ex-presidents still hang out. there's a book called the president's club that came out a year or two ago which gives you a lot of behind-the-scenes look at how the presidents interact. there are a lot of facets to it. sometimes people work together. sometimes they don't. >> as we close out here, redena crump kee wants to know, do they still take on new causes. >> they have this basic set of causes in which they travel extensively. and they're going to the poorest countries of the world. the chads and the malis make india and other countries look very wealthy. so they still do travel a lot. but they focus on the causes they have to produce the result that they're trying to achieve. so